.banner{
    width: 100%;
    height: auto;
    overflow: hidden;
}
.banner img{
    width: 100%;
}
.dianLiang{
    width: 90%;
    height: auto;
    overflow: hidden;
    background-color: #fff;
    margin: 0 auto;

}
.dianLiang .a_icon {
    display: block;
    float: left;
    width: 31%;
    text-align: center;
    margin-bottom: 5px;
    margin-right: 3%;
}
.dianLiang .a_icon:nth-child(3){
    float: right;
    margin-right: 0;
}
.dianLiang .a_icon:nth-child(6){
    float: right;
    margin-right: 0;
}
.dianLiang .a_icon:nth-child(9){
    float: right;
    margin-right: 0;
}

.a_icon span {
    display: block;
    font-size: 0.24rem;
}
.a_icon img {
    width: 100%;
}